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Redis in LibreApps Desktop

High-performance caching and real-time data management.

Overview​

Redis is an open-source, in-memory data structure store used as a database, cache, and message broker. In LibreApps Desktop, it plays a vital role in improving application performance and handling real-time features.

Key Use Cases​

  • Caching: Store frequently accessed data (e.g., user profiles, configuration settings) in memory to reduce database load and improve response times.
  • Session Management: Store user session data to ensure fast and reliable access across multiple microservice instances.
  • Rate Limiting: Use Redis to track and enforce API rate limits for users and organizations.
  • Real-time Notifications: Use Redis Pub/Sub to deliver real-time alerts and updates to the frontend.
  • AI Response Caching: Cache common AI responses to reduce costs and improve latency.

Configuration​

Microservices connect to Redis using Spring Data Redis. Configuration is typically provided in the application.yml:

spring:
  redis:
    host: localhost
    port: 6379
    password: your-password

Data Structures​

Redis supports various data structures that are useful for different tasks:

  • Strings: Simple key-value pairs for caching.
  • Hashes: Store objects with multiple fields (e.g., user sessions).
  • Lists: Manage queues for background tasks.
  • Sets: Store unique items (e.g., active user IDs).
  • Sorted Sets: Manage leaderboards or prioritized tasks.

Best Practices​

  • ✅ Do this: Set an expiration time (TTL) for all cached data to avoid stale information.
  • ✅ Do this: Use descriptive keys with a consistent naming convention (e.g., user:123:profile).
  • ❌ Don't do this: Store large amounts of data in Redis; it is an in-memory store and should be used for small, frequently accessed items.